Timeline - Thermosetting Plastics and Thermoplastics• 1926 - Vinyl or PVC - Walter Semon invented a plasticized PVC• 1933 - Polyvinylidene chloride or Saran also called PVDC - accidentally discovered by Ralph Wiley, a Dow Chemical lab worker• 1937 - Polyurethanes tradenamed Igamid for plastics materials and Perlon for fibers. - Otto Bayer and co-workers discovered and patented the chemistry of polyurethanes• 1938 - Polystyrene made practical• 1939 - Nylon and Neoprene considered a replacement for silk and a synthetic rubber respectively Wallace Hume Carothers• 1941 - Polyethylene Terephthalate or Pet - Whinfield and Dickson• 1942 - Unsaturated Polyester also called PET patented by John Rex Whinfield and James Tennant Dickson• 1951 - High-density polyethylene or HDPE tradenamed Marlex - Paul Hogan and Robert Banks• 1951 - Polypropylene or PP - Paul Hogan and Robert Banks• 1953 - Saran Wrap introduced by Dow Chemicals.• 1954 - Styrofoam the trademarked form of polystyrene foam insulation, invented by Ray McIntire for Dow Chemicals• 1970 - Thermoplastic Polyester this includes trademarked Dacron, Mylar, Melinex, Teijin, and TetoronHistoryU.S. PLASTIC RECYCLING HISTORY> In the late 1980s, the United States was running out of landfill space> Awareness : Communities started collection programs for recyclables> MSW is frequently collected and hauled to a disposal sites in the United States> APC (American Plastic Council) has sponsored research aimed at driving down the cost of collecting, processing, sorting and reclaiming plastics > Problems : cost of recycling programs >> cost of waste disposalRecycling is valued for :> Conserving natural resources> Creating jobs and additional economic activity> Reducing the environmental impacts of virgin material extraction> About 40 billion pounds of plastics are generated as MSW in the United States or 9.4% by weight of MSW produced> The plastic industry annually recycles approximately 4 billion pounds of postconsumer and pre-consumer scrap plastics> It can be split into approximately 1,4 billion pounds of pre-consumer scrap plastics and 2,6 billion pounds of postconsumer plasticsPlastics packaging comprises 12% of all packaging amount, although it only makes up 4% (1,6 billion pounds) of all MSW by weight.Packaging of all types comprises only 33% of MSWThermoplastic> Thermoplastics melt when heated to high temperature> Thermosetting plastics do not melt when heated; instead, they harden> The thermoplastic family of plastics represents about 90% of all plastics sold> The entire spectrum of packaging plastics is thermoplasticsChemical StructureUSEPA (United States Environmental Protection Agency), 1996 statisticsEssential Part of RecyclingCollectionProcessorsEnd usersCustomersReclaimersplastic bottlesplastic carpetstrappingpipesplastic lumber6 INTERESTING FACTIn 1974 the first single use plastic bags were introduced to stores and presently over One Trillion bags are used each year.

It requires 3 times the amount of water to produce a plastic bottle than it does to fill it

90% of the price you pay for the bottled water goes to the plastic bottle, while the water cost you only 10% of the money you give.

Fish in the Ocean confuse plastic pieces for plankton and scientists have found that they eat more plastic than plankton. Wildlife also die from becoming entangled in plastic.

It takes 17 million barrels of oil to produce plastic bottles yearly. This could fuel 1 million cars for a year

There are many countries which have banned or restricted the use of plastic bags. Australia, China, Austria, Bangladesh, Ireland and several European Union countries are among them.

Recycling is only a semi-perfect solution"We don't want people to stop recycling, because we have to do something with the plastic we end up with,"

"But, it's not the answer to our plastic problem."

"Most plastic from the U.S. gets shipped to China to be recycled where it's melted down in plants that pollute the local air and water."

"What's more, sometimes recycled plastic is "downcycled," that is, a plastic bottle isn't turned back into a plastic bottle."

"It's recycled into carpeting or fleece for clothing or some other product that often isn't or can't be recycled at the end of its useful life. "It's really just slowing down [plastic's] progress to the landfill."1.PET2.HDPE5.PP6.PS3.PVC4.LDPEPLASTIC RESIN CODERECYCLED PRODUCTS EXAMPLESingle-family homes collection systemMulti-family homes collection systemRegrind PlasticBaled PlasticSmall PelletsRecycling Plastic Water Bottles in CanadaRecycling ProcessHow Plastic Bottles are Recycled into Polyester in UKSouth African ArtistCooking with Ben in QueenslandLocation of The Great Pacific GarbageUpcoming EARTH DAY - 22 AprilTHANK YOU!Thermosetting